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A black mid-tower gaming desktop with RGB-lit liquid cooler and glass side panel

Skytech

Skytech ST-LEGACY4-1617-B-AL gaming PC Ryzen 9 9900X3D RTX 5090 32GB 64GB DDR5 2TB NVMe

SKU CH-YXXX-A2MAZ MPN ST-LEGACY4-1617-B-AL

A gaming desktop PC with a Ryzen 9 9900X3D processor, RTX 5090 32GB GDDR7 graphics, 64GB DDR5 memory and a 2TB NVMe SSD

  • ProcessorAMD Ryzen 9 9000 Series
  • RAM capacity64 GB DDR5
  • SSD storage2 TB NVMe
  • GraphicsGeForce RTX 5090
  • CPU modelAMD Ryzen 9 9900 × 3D
  • Operating systemWindows 11 Home

Configuration Antec P1 Performance Black / 9900X3D / 5090 / 64G / 2T

Show 3 more
  • Ryzen 9 9900X3D with 3D V-Cache and 5.5GHz turbo accelerates gaming and AI workloads
  • RTX 5090 with 32GB GDDR7 and Tensor Cores powers DLSS 4 for higher frame rates
  • 64GB DDR5 6000 RGB memory with heat spreader keeps multitasking smooth and cool
  • 2TB Gen4 NVMe SSD delivers up to 30× faster load times than HDD
  • 360mm AIO liquid cooler with ARGB fans maintains low CPU temperatures under load

Skytech Legacy Gaming Desktop PC

The Skytech Legacy gaming desktop PC ships new with an AMD Ryzen 9 9900X3D processor running at 4.4 GHz with a 5.5 GHz turbo boost, an NVIDIA GeForce RTX 5090 graphics card with 32GB GDDR7 memory, 64GB DDR5 6000 RGB RAM, a 2TB Gen4 NVMe M.2 SSD, a 360mm AIO liquid cooler, 1200W Gold ATX 3.0 power supply, Wi-Fi and Windows 11 Home.

Enthusiasts seeking maximum AI and gaming throughput

Buyers who need a fully assembled system with Ryzen AI Engine and NVIDIA Tensor Core acceleration for creative workloads, high-refresh gaming and local AI inference will match this configuration; users requiring additional internal storage bays or a different motherboard chipset should consider other options.

32GB GDDR7 video memory on the RTX 5090

The graphics card provides 32GB of GDDR7 memory, which determines whether the system can handle the largest textures, 4K and 8K assets, and heavy AI model batches without swapping to system RAM.

How it compares

Measured against everything we stock in Gaming PCs, at today’s prices. Recalculated every night.

Price $4,312.99
Pricier than about 81% of the 24,925 comparable items (median $2,694.99).
RAM capacity 64 GB DDR5
Higher than about 60% of the 24,338 comparable items (median 32 GB).
SSD storage 2 TB NVMe
Typical for this category: the median of 24,468 items is 2 TB.

New to this? Buying a gaming PC with crypto — what to check, what it costs to pay, and what is never asked for.

Specifications

Product
Model nameSTT-LEGACY4-1617-C03-*-**
Processor
ProcessorAMD Ryzen 9 9000 Series
CPU modelAMD Ryzen 9 9900 × 3D
Memory
RAM capacity64 GB DDR5
Storage
SSD storage2 TB NVMe
Hard driveNo
Graphics
GraphicsGeForce RTX 5090
Size & build
Shipping weight23.59 kg
Package size660 × 610 × 381 mm
Software
Operating systemWindows 11 Home

Other versions of this model

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Questions about this item

What case clearance does the 360mm AIO liquid cooler require?

The 360mm AIO liquid cooler needs a case with a 360mm radiator mounting area and enough clearance for the radiator, fans, and tubing.

How is the 64GB DDR5 6000 RGB memory installed, and what step is often missed?

The 64GB DDR5 6000 RGB modules are pre-installed in the motherboard slots; the step often missed is enabling the XMP or EXPO profile in the BIOS to run at the rated 6000 speed.

When will the 1200W Gold ATX 3.0 power supply need replacement?

A 1200W Gold ATX 3.0 unit typically lasts several years; replacement is needed if fan noise increases, voltages drift, or the system becomes unstable under heavy load.

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